Boxxy/Catherine's unknown dark side whom lurks within her soul, waiting for the adequate moment to engulf the entire world in darkness. Zalgo Boxxy's primary objective, however, was to her make her twin suffer from the same exact pain and torment that she went through a long time ago. But unlike the Zalgofied versions a lot of things, she's a harmless zalgofied character. She cancelled her goal because she found out about what Boxxy went through. She also doesn't speak corrupted language.